Checking The Vlan Staus; Vrrp Preempt Mode Does Not Function; Critical Ip - Avaya Virtual Services Platform 7000 Series Troubleshooting Manual

2. Enter the ip vrrp <VRID> action preempt command.

Checking the VLAN staus

Check that the VLAN in which VRRP routers are enabled is operational.
Procedure
1. Enter Privileged EXEC mode:
enable
2. Enter the show vlan command.
3. Observe the status displayed in the Active column for the VLAN.

VRRP preempt mode does not function

The VSP 7000 Series does not support VRRP preempt mode as defined in RFC 3768. A switch
performing as a VRRP master router within a VLAN is always preempted by a higher priority switch
that is added to the VLAN.
The preempt action supported by the VSP 7000 Series is designed to manually terminate an active
hold down state initiated on a virtual router by a configured hold down timer interval.
This section describes the troubleshooting process you can use to diagnose and resolve a situation
where VRRP preempt does not appear to function.

Critical IP

Ensure that critical IP functionality for the virtual router is enabled and that the critical IP address is
set to the IP address of the local L3 VLAN.
Checking critical VRRP interface information
Display and observe critical VRRP interface configuration information.
Procedure
1. Log on to ACLI to enter User EXEC mode.
2. Enter the show ip vrrp interface verbose command.
3. Observe if the virtual router is in holddown state.
4. Observe if Critical IP is enabled.
5. Observe and note if the Critical IP Address is the IP address of the local L3 VLAN.
July 2015
Comments on this document? infodev@avaya.com
VRRP preempt mode does not function
Troubleshooting Avaya VSP 7000 Series
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